"attractor." YourDictionary, n.d. Web. 17 October 2018. <http://www.yourdictionary.com/attractor>.
attractor. (n.d.). Retrieved October 17th, 2018, from http://www.yourdictionary.com/attractor
(mathematics, physics) A set of points or states to which a dynamical system evolves after a long enough time. That is, points that get close enough to the attractor remain close even if slightly disturbed.
English Wiktionary. Available under CC-BY-SA license.
It is possible that the lyncurium of the ancients, which according to Theophrastus attracted light bodies, was tourmaline, a mineral found in Ceylon, which had been christened by the Dutch with the name of aschentrikker, or the attractor of ashes.